Propylene Glycol

What Is Propylene Glycol?

Propylene Glycol is an organic liquid, mostly used in the production of polymers and as a preservative in foods, along with other consumables. This colorless substance is graded safe enough for human consumption, at low quantities.

Common Uses

Freeze Protection

Since Propylene Glycol is used to lower the freezing point of water, it's commonly used as a de-icer for airport runways and aircraft. It is also designed for use in hydronic systems for freeze and corrosion protection.

Automotive

Propylene Glycol is commonly used as a substitute for Ethylene Glycol in low toxicity and environmentally safe antifreeze.

Food & Beverage

Polymers

The majority of Propylene Glycol is used as chemical feedstock, during the production of unsaturated polyester resins - which produce sheet molding, printer toner and fiberglass wall panels.

Smoking

Propylene Glycol is a key preservative in tobacco cigarettes, as well as a major ingredient in eLiquids and the cartridges used for E-Cigarettes.

Product Line Details

Product

Key Applications

Product Descriptions

TRUEGARD Propylene Glycol Usp
Kosher 100% Concentrate

Food & Flavorings
Heat Transfer

N/A

TRUEGARD Propylene Glycol Usp
Kosher 50/50

Food & Flavorings
Heat Transfer

N/A

TRUEGARD Propylene Glycol Usp
Kosher 100% Concentrate

Heat Transfer
Food & Flavorings
Closed Loop
Water-Based Hauling

-50℃ to 120℃ (60℉ to 250℉)

TRUEGARD Propylene Glycol Usp
Inhibited Heat-Transfer Fluid 50/50

Heat Transfer
Food & Flavorings
Closed Loop
Water-Based Hauling

-50℃ to 120℃ (60℉ to 250℉)

Typical Properties By Concentration

Properties *

Conc.

60%

50%

40%

35%

30%

25%

Propylene Glycol

95%

60%

50%

40%

35%

30%

25%

Performance Additives and Water

4%

40%

50%

60%

65%

70%

75%

Appearance

Liquid, Clear, Orange

Liquid, Clear, Orange

Liquid, Clear, Orange

Liquid, Clear, Orange

Liquid, Clear, Orange

Liquid, Clear, Orange

Liquid, Clear, Orange

"Specific Gravity (15/15℃ 60/60℉)"

1.055 - 1.065

1.050 - 1.059

1.043 - 1.054

1.035 - 1.042

1.034 - 1.042

1.029 - 1.038

1.024 - 1.034

pH 50% glycol

9.0 - 10.5

9.0 - 10.5

9.0 - 10.5

9.0 - 10.5

9.0 - 10.5

9.0 - 10.5

9.0 - 10.5

Reserve Alkalinity (min)

12

6

6

4

4

3

3

Freeze Point Max

-22℉ / -31℃ (as 50%)

-49℉ / -45℃

-22℉ / -31℃

-4℉ / -20℃

4℉ / -16℃

10℉ / -12℃

15℉ / -10℃

*Concentrate based on volume of Propylene Glycol, mixtures based on volume of TRUEGARD brands

Typical properties, not to be construed as specificaitons. As use conditions are not within its control, Keller-Heartt does not guarantee results from use of the information or products herein, and gives no warranty, express or implied.